Well I heard that itunes has this function as well (only heard, never practically operated!!!). It saided that when you put the video in iTunes and right click the video you put in the “video section", there should be an option “convert for ipod” or “convert to mp4” that can help you make it. You can try on this.And if it didn’t work, I suggest you use Video Converter Ultimate newbielink:http://www.levesoft.com/video-converter-ultimate.html [nonactive] it’s easy and fast. for mac you can use Mac Total Media Converter newbielink:http://www.levesoft.com/mac-total-media-converter.html [nonactive]

DVD Fab. Converts DVDs, files, etc.Not free but a good product--Cucusoft Video Converter Ultimate, multiple format support, frequent updates, great user forum.I got lifetime keys a few years ago. I convert all my old DVDs to .mkv or .mp4 and have them on a HDD. You can convert any source to iPad, iPod, PS3, XBox, PSP, many more or do a custom conversion.